SR / EG&G 7265
The Signal Recovery model 7265 Lock-in Amplifier (EG&G 7265)
uses the latest digital signal processing (DSP) technology to extend the operating capabilities of the lock-in
amplifier to provide the researcher with a very versatile unit suitable both for measurement and control of
experiments. At the same time due consideration has been given to the needs of those users wishing only to make
a simple measurement quickly and easily. The instrument performs all of the normal measurements of a dual phase
lock-in amplifier, measuring the in-phase and quadrature components, vector magnitude, phase angle and noise
of the input signal.
Signal Recovery 7265 quotation today.
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Operating over a frequency range of 1 mHz to 250 kHz, the model 7265
offers full-scale voltage sensitivities down to 2 nV and current sensitivities to 2 fA. The instrument has a
choice of operating modes, signal recovery or vector voltmeter, for optimum measurement accuracy under different
conditions, and the use of DSP techniques ensures exceptional performance.
This built-in experiment allows the internal oscillator frequency to be swept between preset frequencies, while
simultaneously measuring the input signal magnitude and phase. The mode is ideal for determining the frequency
and phase response of external networks
Most lock-in amplifiers will measure signals at the applied reference frequency or its second harmonic. In the
7265, operation is possible at harmonics up the 65,536th, and in Dual Harmonic mode, simultaneous measurements
can be made on two harmonics
Signal Recovery / EG&G 7265 Features
- 0.001 Hz to 250 kHz operation
- Voltage and current mode inputs
- Direct digital demodulation without down-conversion
- 10 μs to 100 ks output time constants
- Quartz crystal stabilized internal oscillator
- Synchronous oscillator output for input offset reduction
- Harmonic measurements to 65,536F
- Dual reference, Dual Harmonic and Virtual Reference modes
Ask for Signal Recovery 7265 detailed specification.